662321012551 has 8 divisors (see below), whose sum is σ = 722765955600. Its totient is φ = 601915059840.

The previous prime is 662321012519. The next prime is 662321012557. The reversal of 662321012551 is 155210123266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 662321012551 - 2⁵ = 662321012519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662321012557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9712056 + ... + 9780013.

It is an arithmetic number, because the mean of its divisors is an integer number (90345744450).

Almost surely, 2^662321012551 is an apocalyptic number.

662321012551 is a deficient number, since it is larger than the sum of its proper divisors (60444943049).

662321012551 is a wasteful number, since it uses less digits than its factorization.

662321012551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19495169.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 662321012551 in words is "six hundred sixty-two billion, three hundred twenty-one million, twelve thousand, five hundred fifty-one".